как исправить эту ошибку :
# console
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f89f662dd90>
Traceback (most recent call last):
File "/home/user/.local/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
self.check(display_num_errors=True)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/base.py", line 425, in check
raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System check identified some issues:
ERRORS:
accounts.User.groups: (fields.E304) Reverse accessor for 'User.groups' clashes with reverse accessor for 'User.groups'.
HINT: Add or change a related_name argument to the definition for 'User.groups' or 'User.groups'.
accounts.User.user_permissions: (fields.E304) Reverse accessor for 'User.user_permissions' clashes with reverse accessor for 'User.user_permissions'.
HINT: Add or change a related_name argument to the definition for 'User.user_permissions' or 'User.user_permissions'.
auth.User.groups: (fields.E304) Reverse accessor for 'User.groups' clashes with reverse accessor for 'User.groups'.
HINT: Add or change a related_name argument to the definition for 'User.groups' or 'User.groups'.
auth.User.user_permissions: (fields.E304) Reverse accessor for 'User.user_permissions' clashes with reverse accessor for 'User.user_permissions'.
HINT: Add or change a related_name argument to the definition for 'User.user_permissions' or 'User.user_permissions'.
System check identified 4 issues (0 silenced).
#accounts/urls.py
from django.urls import include, path
from . import views
urlpatterns = [
path('register/', views.SignUpView.as_view(), name='signup'),
path('register/student/', views.StudentSignUpView.as_view(), name='student_signup'),
path('register/teacher/', views.TeacherSignUpView.as_view(), name='teacher_signup'),
path('teacher/home', views.teacher_home, name='teacher_home'),
path('student/home', views.student_home, name='student_home'),
]
#models.py
from django.contrib.auth.models import AbstractUser
from django.db import models
from django.utils.html import escape, mark_safe
# Create your models here.
class User(AbstractUser):
is_student = models.BooleanField(default=False)
is_teacher = models.BooleanField(default=False)
class Subject(models.Model):
name = models.CharField(max_length=30)
color = models.CharField(max_length=7, default='#007bff')
def __str__(self):
return self.name
def get_html_badge(self):
name = escape(self.name)
color = escape(self.color)
html = '<span class="badge badge-primary" style="background-color: %s">%s</span>' % (color, name)
return mark_safe(html)
class UserProfile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
avatar = models.ImageField(upload_to = 'profile_pics', blank = True)
#forms.py
from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.db import transaction
from django.forms.utils import ValidationError
from accounts.models import User, Subject
class TeacherSignUpForm(UserCreationForm):
class Meta(UserCreationForm.Meta):
model = User
def save(self, commit=True):
user = super().save(commit=False)
user.is_teacher = True
if commit:
user.save()
return user
class StudentSignUpForm(UserCreationForm):
interests = forms.ModelMultipleChoiceField(
queryset=Subject.objects.all(),
widget=forms.CheckboxSelectMultiple,
required=True
)
class Meta(UserCreationForm.Meta):
model = User
@transaction.atomic
def save(self):
user = super().save(commit=False)
user.is_student = True
user.save()
student = Student.objects.create(user=user)
student.interests.add(*self.cleaned_data.get('interests'))
return user
#views.py
from django.contrib.auth import login
from django.shortcuts import redirect
from django.views.generic import CreateView, TemplateView
from accounts.forms import StudentSignUpForm
from accounts.models import User
from accounts.forms import TeacherSignUpForm
class SignUpView(TemplateView):
template_name = 'registration/signup.html'
class StudentSignUpView(CreateView):
model = User
form_class = StudentSignUpForm
template_name = 'registration/signup_form.html'
def get_context_data(self, **kwargs):
kwargs['user_type'] = 'student'
return super().get_context_data(**kwargs)
def form_valid(self, form):
user = form.save()
login(self.request, user)
return redirect('student/home')
class TeacherSignUpView(CreateView):
model = User
form_class = TeacherSignUpForm
template_name = 'registration/signup_form.html'
def get_context_data(self, **kwargs):
kwargs['user_type'] = 'teacher'
return super().get_context_data(**kwargs)
def form_valid(self, form):
user = form.save()
login(self.request, user)
return redirect('teacher/home')
def student_home(request):
return render(request,'student_home.html')
def teacher_home(request):
return render(request,'teacher_home.html')
#decorators.py
from django.contrib.auth import REDIRECT_FIELD_NAME
from django.contrib.auth.decorators import user_passes_test
def student_required(function=None, redirect_field_name=REDIRECT_FIELD_NAME, login_url='login'):
'''
Decorator for views that checks that the logged in user is a student,
redirects to the log-in page if necessary.
'''
actual_decorator = user_passes_test(
lambda u: u.is_active and u.is_student,
login_url=login_url,
redirect_field_name=redirect_field_name
)
if function:
return actual_decorator(function)
return actual_decorator
def teacher_required(function=None, redirect_field_name=REDIRECT_FIELD_NAME, login_url='login'):
'''
Decorator for views that checks that the logged in user is a teacher,
redirects to the log-in page if necessary.
'''
actual_decorator = user_passes_test(
lambda u: u.is_active and u.is_teacher,
login_url=login_url,
redirect_field_name=redirect_field_name
)
if function:
return actual_decorator(function)
return actual_decorator
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